Definition of MBR & how to fix missing or corrupt MBRs A master boot record (often shortened as MBR) is a kind of boot sector ...

â â â â â â â How to fix installation errors if the disk is using MBR If you have an older disk using the MBR partition scheme, things should be much easier.

You need to rebuild the Boot Configuration Data file and repair the Master Boot Record file. To do this, you have to boot into the Advanced Startup Options screen and then select Command Prompt.